Finding the Fourth Proportional to 3,257.61, 4,885.94 and 1,066.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,257.61 : 4,885.94 = 1,066.42 : x
2. Step 2: Convert to fraction form
   3,257.61/4,885.94 = 1,066.42/x
3. Step 3: Cross multiply
   3,257.61x = 4,885.94 × 1,066.42
4. Step 4: Simplify right side
   3,257.61x = 5,210,458.80
5. Step 5: Solve for x
   x = 5,210,458.80/3,257.61
6. Step 6: Final answer
   x = 1,599.48